as alternatives in difficult membrane flashing areas.
Seam tapes shall be minimum 75 mm (3 inches) wide.
Some specific situations may require wider seam
tapes as recommended by the membrane manufacturer.
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Double-sided synthetic rubber tape, minimum 0.76 mm (0.03 inch) thick,
minimum 75 mm (3 inch) wide. Seam tape shall be as supplied by the roof
membrane manufacturer and recommended by the manufacturer's printed data
for forming watertight bond of EPDM sheet materials to each other for the
application specified and conditions encountered. 150 mm (6 inch) wide
tape is required for seam seals along lines of mechanical attachment of
membrane.
2.1.3
Lap Splice Adhesive
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NOTE: Lap splice adhesive is used for some membrane
to membrane bond applications.
Include bracketed options as applicable.
Low VOC materials may be required in some geographic
locations and on occupied buildings to minimize
potential irritation to occupants.
Include second and third brackets options at end of
paragraph when lap splice adhesive is prohibited for
field seams of roof membrane.
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[Low volatile organic compound (VOC)] synthetic rubber adhesive as supplied
by roof membrane manufacturer and recommended by the manufacturer's printed
data for forming watertight bond of EPDM sheet membrane materials to each
other [in areas of membrane flashing]. [Splice adhesive shall not be used
to form membrane seams in field of roof or at standard base flashing
conditions.]
2.1.4
Bonding Adhesive
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NOTE: Bonding adhesive is used for adhering EPDM
membrane to materials other than EPDM.
Low VOC materials may be required in some geographic
locations and on occupied buildings to minimize
potential irritation to occupants.
When Type III (fleece-backed) membrane is specified,
include the first bracketed option as applicable,
delete the second bracketed option, and write in a
description of the adhesive required as the third
bracketed option. When hot asphalt is the specified
adhesive, in Part 3, include parameters for heating
of asphalt and application similar to those found in
UFGS 07511.
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SECTION 07530
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